PDF malware analysis — malicious · e0a2d7468752d253

MALICIOUS

PDF

104.0 KB Created: 2021-07-22 08:01:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26

MD5: bc14566ccb616186f8d18d58beed415b SHA-1: c1bd11b9b99e15f480958c5fed6a6551d966a49e SHA-256: e0a2d7468752d253ad767671f2b619d58cfa235839f01e9bd333f59ae4f0e188

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to compromised CMS uploads and disposable hosting. The document body is unreadable, but the presence of numerous external links suggests an attempt to redirect users to malicious sites for further exploitation.

Machine Learning

Nyx PDF Classifier malicious score 0.9488

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://draftingfloorplan.com/ckfinder/userfiles/files/3237267995.pdf In PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608804212cacf---24652210546.pdfIn PDF document text
- https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/s6pahuu47nol4i8takrjiqk0a2/4323223.pdfIn PDF document text
- http://darec.sk/files/files/7008989822.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/a7983f7c77513b9163c67c140345d70d/49244005143.pdfIn PDF document text
- https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/6a3860488df195270458099908aed81e/80322211293.pdfIn PDF document text
- http://www.maderas-navarro.com/ckfinder/userfiles/files/zerudukexepekuxotukak.pdfIn PDF document text
- http://phamtrangia.com/upload/files/26020100403.pdfIn PDF document text
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/6a443f71eda6c389d9a5727532b151f6/4643507834.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9078b3f9d---wunedepem.pdfIn PDF document text
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/124qchp4as274s41phflc9ug16/35180205468.pdfIn PDF document text
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607deb515af0b---pezapumovanokekapojemob.pdfIn PDF document text
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c134bc81fc8---87444314054.pdfIn PDF document text
- http://newgrids.com/userfiles/file/masujanage.pdfIn PDF document text
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ae3d873a32---jejixutoxasulamumujezoras.pdfIn PDF document text
- https://chief-moving.com/editor_upload/file/xupudiledexow.pdfIn PDF document text
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/3c2398498465730070cdc2715535b6db/jojifexapifowomusu.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcedf531adf---sanakokutikixunexox.pdfIn PDF document text
- http://slbreakingnews.com/ckfinder/userfiles/files/29835287695.pdfIn PDF document text
- https://woodfur.in/userfiles/file/zobix.pdfIn PDF document text
- http://burrburroughsfamily.com/clients/55468/File/42231950867.pdfIn PDF document text
- http://sbnjl.com/userfiles/files/28634298544.pdfIn PDF document text
- https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/hojgqarjvn2ncn08jdnu80u07b/74902229138.pdfIn PDF document text
- http://dnepropress.net/files/file/78936602444.pdfIn PDF document text
- http://densayhongngoai.com/uploads/userfiles/file/seneg.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16078250447244---33230008841.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=dost+english+meaningPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00012ea6.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x12EA6	21484 bytes
SHA-256: `33cfc64dbc05a0cf1f555d538d81a67e5b93b9c7d11fd7164b86bd856c981b8b`
`font_00_sfnt_off0000f5ec.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF5EC	23100 bytes
SHA-256: `ea2ee99807e8311c11ca2cb30ed1818f80531ed60085928b6d10fdaf0554bc67`
`font_02_sfnt_off000153ef.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x153EF	10456 bytes
SHA-256: `ef11b5ffe2172e25e5a50a070ac0bef47daabe5fb134491820dbca53d444866b`
`font_03_sfnt_off00016b75.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x16B75	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_04_sfnt_off00018382.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x18382	3464 bytes
SHA-256: `a8161c2f5ba9235eb51b4fcc43b6bb219725019365cb8d38f9ec25dfe5ce54ff`

Open this report in the interactive analyzer, or submit your own file for analysis.